A follow-up study on the unexpected and unexplained findings from the Study of Child Care Subsidy Duration conducted by members of the Child Care Policy Research Consortium under the leadership of Oregon State University, which found that low-income families in five states used child care subsidies for a surprisingly short period of time--between three and seven months on average. The follow-up study surveys families who have exited a State child care subsidy program, and examines administrative data, to explore the possible reasons for such short average participation rates.